<!--
  $Id: fixedicon.html,v 1.2 2011-04-28 15:31:10 gaudenz Exp $
  Copyright (c) 2006-2010, JGraph Ltd
  
  FixedIcon example for mxGraph. This example demonstrates
  customizing the icon position in the mxLabel shape.
-->
<html>
<head>
	<title>Fixed icon example for mxGraph</title>

	<!-- Sets the basepath for the library if not in same directory -->
	<script type="text/javascript">
		mxBasePath = '../src';
	</script>

	<!-- Loads and initializes the library -->
	<script type="text/javascript" src="http://www.diagram.ly/client?version=1.9.2.5"></script>

	<!-- Example code -->
	<script type="text/javascript">
		// Overrides the label redraw code to place the icon
		mxLabel.prototype.redraw = function()
		{
			var isSvg = (this.dialect == mxConstants.DIALECT_SVG);
			var isVml = mxUtils.isVml(this.node);
			
			// Updates the bounds of the outermost shape
			if (isSvg)
			{
				this.updateSvgShape(this.innerNode);
				
				if (this.shadowNode != null)
				{
					this.updateSvgShape(this.shadowNode);
				}
	
				this.updateSvgGlassPane();
			}
			else if (isVml)
			{
				this.updateVmlShape(this.node);
				this.updateVmlShape(this.rectNode);
				this.label.style.width = this.node.style.width;
				this.label.style.height = this.node.style.height;
				
				this.updateVmlGlassPane();
			}
			else
			{
				this.updateHtmlShape(this.node);
			}
	
			// Updates the imagewidth and imageheight		
			var imageWidth = 0;
			var imageHeight = 0;
			
			if (this.imageNode != null)
			{
				imageWidth = (this.style[mxConstants.STYLE_IMAGE_WIDTH] ||
					this.imageSize) * this.scale;
				imageHeight = (this.style[mxConstants.STYLE_IMAGE_HEIGHT] ||
					this.imageSize) * this.scale;
	
				// Places the icon
				var x = (this.bounds.width - imageWidth) / 2;
				var y = this.bounds.height - imageHeight;

				if (isSvg)
				{
					this.imageNode.setAttribute('x', (this.bounds.x + x) + 'px');
					this.imageNode.setAttribute('y', (this.bounds.y + y) + 'px');
					this.imageNode.setAttribute('width', imageWidth + 'px');
					this.imageNode.setAttribute('height', imageHeight + 'px');
				}
				else
				{
					this.imageNode.style.position = 'relative';
					this.imageNode.style.left = x + 'px';
					this.imageNode.style.top = y + 'px';
					this.imageNode.style.width = imageWidth + 'px';
					this.imageNode.style.height = imageHeight + 'px';
					this.imageNode.setAttribute('stroked', 'false');
				}
			}
		};

		// Program starts here. Creates a sample graph in the
		// DOM node with the specified ID. This function is invoked
		// from the onLoad event handler of the document (see below).
		function main(container)
		{
			// Checks if the browser is supported
			if (!mxClient.isBrowserSupported())
			{
				// Displays an error message if the browser is not supported.
				mxUtils.error('Browser is not supported!', 200, false);
			}
			else
			{
				// Enables crisp rendering of rectangles in SVG
				mxLabel.prototype.crisp = true;
				
				// Makes the shadow brighter
				mxConstants.SHADOWCOLOR = '#C0C0C0';
				
				// Creates the graph inside the given container
				var graph = new mxGraph(container);

				// Uncomment the following if you want the container
				// to fit the size of the graph
				//graph.setResizeContainer(true);
				
				// Enables rubberband selection
				new mxRubberband(graph);
				
				// Gets the default parent for inserting new cells. This
				// is normally the first child of the root (ie. layer 0).
				var parent = graph.getDefaultParent();
								
				// Adds cells to the model in a single step
				graph.getModel().beginUpdate();
				try
				{
					var v1 = graph.insertVertex(parent, null, 'Fixed icon', 20, 20, 80, 50,
						'shape=label;image=images/plus.png;imageWidth=16;imageHeight=16;spacingBottom=10;' +
						'fillColor=#adc5ff;gradientColor=#7d85df;glass=1;rounded=1;shadow=1;');
				}
				finally
				{
					// Updates the display
					graph.getModel().endUpdate();
				}
			}
		};
	</script>
</head>

<!-- Page passes the container for the graph to the grogram -->
<body onload="main(document.getElementById('graphContainer'))">

	<!-- Creates a container for the graph with a grid wallpaper -->
	<div id="graphContainer"
		style="overflow:hidden;width:321px;height:241px;background:url('editors/images/grid.gif');cursor:default;">
	</div>
</body>
</html>
